Hydromotor.



8 0 9 l L 2 Y L U J D E T N E T A P R .0 PT A0 RM G0 -R AD Y H APPLIOATION FILED JUNE 19, 1905. RENEWED DBO. 16, 1907.

2 SHEETS-SHEET 1.

No. 894,135. PATENTE D JULY 21, 190m A. GRAF.

HYDROMOTOR.

APPLICATION FILED JUNE 19, 1905. RENEWED DBO. I6, 1907.

2 sums-sum 2.

UNITED STATES PATENT OFFICE.

ANTON GRAF, OF NEWBURYPORT, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO JOHNJOYCE, OF ANDOVER, MASSACHUSETTS.

HYDROMOTOR.

Application filed June 19, 1905, Serial No. 265,849.

Specification of Letters Patent.

Patented July 21, 1908.

Renewed December 16, 1907. Serial No. 406,767.

To all whom it may concern:

Be it known that I, ANTON GRAF, of N ewburyport, in the county of Essexand State of Massachusetts, have invented certain new and usefulImprovements in Hydromotors, of which the following is a specification.

My invention relates to new and useful improvements in hydromotors, andfor the purposes of illustration, the device is shown in thisapplication as embodied in a vessel for the propulsion thereof, althoughit is adapted to other uses as a motor.

The object of my invention is to produce a new and useful hydromotorsimple in construction and efficient in operation.

My invention consists of certain novel fea tures hereinafter describedand particularly pointed out in the claims.

In the accompanying drawings Which illustrate a construction embodyingmy invention, Figure l is a top plan view of a boat containing myimprovements arranged in duplex. Fig. 2 is a detail side elevation ofthe hydromotor and cooperating parts, with the arrows showing thedirection of the flow of the water and with certain valves opened andothers closed. Fig. 3 is a similar view to Fig. 2 and showing theposition of the valves and the flow of the water indicated by the arrowswhen the mechanism is operated to reverse the motion of the boat. Fig. 4is a side view of the hydromotor.

Like letters of reference refer to like parts throughout the severalviews.

'Within the boat A, shown in dotted lines, is located the boiler B ofany suitable construction and from said boiler leads a steam pipe Ocontrolled by the valve C and forming an injector or inspirator O withinthe in ector chamber D. To the bottom of the chamber D is connected apipe E which is connected by a T-joint E to the pipe E opening at E? tothe water around the front of the boat. A hand-operated valve C controls the flow of steam to the injector O Connected to the chamber D isa pipe O which is bolted or otherwise secured to the duct F 2 of thehydromotor, which consists of two exterior plates F joined together bysuitable bolts as shown. Between the plates F are located a suitabledrum mounted fast onthe shaft f and having the plates f 3 securedthereto and adapted to rotate therewith.

The construction of the hydromotor is not here given at length as thesame will be found H carried fast on the shaft H described at large inmy co-pending application filed April 2, 1906, Ser. No. 309,300.

The outlet f 7 from the hydromotor (Figs.

' D to control the passage through the same.

The pipe E is controlled by a suitable gate valve E which moves'up anddown, as hereinafter described. It is connected at its up per end by aslotted connection to the lever On the said shaft supported by thebrackets H H is gear segment H which'meshes with the rack H on the rodII. This rod H extends rearwardly and is provided at its rear with asuitably mounted lever H". On said rod H is mounted the bell crank Jpivoted on to the .standard J and to said bell crank is connected a rodK moving in the guide J on said support J, andto said rod K is securedfast the rod K likewise secured fast to the stem of the valve F in thepipe C As shown in Fig. 2, the valves E and F are raised thereby openingthe pipes E and O. In the pipe which communicates with. the pipe Cthrough the connections previously de' scribed is a valve F, the stem ofwhich is connected to the lever H fast on the shaft H on which is alsofixed fast another seg ment H which meshes with another rack II on therod H As shown in Fig. 2 the valve F is open, as are also the valves Eand F. The valve D in the pipe D is closed.

Now with the parts described and in the positions shown in Figs. 2 and3, the boat is propelled forward by opening the valve O which allowssteam from the boiler B into the injector chamber D, which steam inducesa suction of water from the front of the boat through the pipe E intothe pipes E up into the injector chamber D through the pipe O past thevalve F which is open, into the duct F and impacts against the blades f3 of the wheel, thereby rotating said wheel, and passes out from thehydromotor through the outletf into the pi e F then into the pipe F pastthe open va ve F, into the water at the rear of the boat, as indicatedby arrows Fig. 2. In this arrangement it will be seen the water is drawnby suction away from the front of the boat and forced out at the rear ofthe boat, the action of which is to draw the boat ahead at the bow andforce it ahead at the stern.

On the shafts f (see Fig. 1) are mounted the bevel gears a which meshwith the bevel gears I) on the shafts a supported by the brackets d andon the ends of said shafts are the propellers e. The rotation of thewheel within the plates F due to the impact of the water and steam,causes a rotation of the shaft f which is communicated as abovedescribed to the propellers e.

To back the boat when standing still or to reverse the boat when goingahead, the o erator takes hold of the lever H and puffs the samerearward (see Fig. 3) which causes the rod H to move the gear segments Hrearward, thereby opening the valve E connected to the lever H fast onthe shaft H and to close the valve F connected to the arm H fast on theshaft H and to close the valve F by means of the bell crank lever J andconnections previously described, and further to close the valve Econnected to the lever H fast on the shaft H and to open the a motor, asource of fluid under pressure havvalve G connected to the lever H faston said shaft H. The parts being moved as just described, and the valveC being open, the injector C induces suction of water from the sternthrough the pipe E (Fig; 3) to the joint E and up through the pipe Einto the injector chamber D, through the pipe C to the joint C (thevalve F being closed) down through the pipe D (the valve D being opened)to the pipe D to the joint F (valve F being closed) up through the pipeF into the hydromotor, turning the wheel to the left and up and outthrough the duct F to the joint 1) and down through the pipe Gr throughthe joint D and out through the pipe Gr discharging through the end Gthereof in the front of the boat. This reversal of thepropellermechanism aided by the suction at the rear of the boat and thedischarge at the front of the boat moves the boat rearwardly. The courseof the water and steam is indicated by the arrows in Fig. 3 in thebacking or in reversing the boat for backward movement.

The valve F controls the flow of steam pressure and water to the motorin that on the forward movement of the boat, said valve F being open,steam pressure and water pass into the motor through the duct F from thepipe C while on the back or reverse movement of the boat, the valve Fbeing closed, steam pressure and water pass down the pipe D into thepipe D up through the pipe F into the motor out through the duct F tothe joint D and down through the pipe Gr and out through the pipe G.

While there is shown in Fig. 1 a hydrornotor and its connecting ductsarranged in duplex, yet it will be understood that one hy dromotor andits connecting ducts or any number of motors and their connecting ductsmay be used.

I do not limit myself to the arrangement and construction'shown as thesame may be varied without departing from the spirit of my invention.

Having thus described the nature of my invention and set forth aconstruction embodying the same, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In apparatus of the character specified, a motor, a source of fluidunder pressure having communications with opposite sides of said motor,a valve controlling each of said communications, a liquid supply pipeleading to said source of fluid under pressure and provided with inletsopening in opposite directions, valves controlling said inlets, and anexhaust leading from said communications.

2. In apparatus of the character specified,

ing communications with opposite sides of said motor, a valvecontrolling each of said communications, a liquid supply pipe leading tosaid source of fluid under pressure, exhaust pipes leading from saidcommunications upon opposite sides of said motor and having outletsopening in opposite directions, and valves controlling said outlets.

3. In apparatus of the character specified, a motor, a source of fluidunder pressure having communications with opposite sides of said motor,a valve controlling each of said communications, a liquid supply pipeleading to said source of fluid under pressure and provided with inletsopening in opposite directions, valves controlling said inlets, exhaustpipes leading from said communications upon opposite sides of said motorand having outlets opening in opposite directions, valves controllingsaid outlets, and means for operating all of said valves to open thecircuit through the communication from the source of fluid underpressure, the liquid supply pipe and the exhaust pipe on one side of themotor and closing the circuit on the other side of the motor. I

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses, this fourteenth day of June A. D.1905.

ANTON GRAF.

WVitnesses:

EDWARD S. FioKETT, S. T. FALCONER.

